.app-top {
    height: 128/7.5vw;
    background: #d43c33;
    >img {
        float: left;
        width: 283/7.5vw;
        margin: 38/7.5vw 0 0 20/7.5vw;
    }
    >a {
        float: right;
        width: 161/7.5vw;
        line-height: 62/7.5vw;
        color: #fff;
        border-radius: 31/7.5vw;
        border: solid 1px #fff;
        font-size: 32/7.5vw;
        text-align: center;
        margin: 32/7.5vw 20/7.5vw 0 0;
    }
}

